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Oil lock up of rotary vane vacuum pumps
Hi
In my lab I have three Pfeiffer pumps. No one shown that problem, ever.
Do a maintenance on it.
16-10-2020 at 07:32
by: Heavy Walter
EMP device for pesky drones
Mr Bob Iannini, in his book Electronic Gadgets for the Evil Genious show an EMP gun.
8-10-2020 at 07:05
by: Heavy Walter
bromine vapour
Yes, tricky to handle it...
I first made vacuum into the vessel, then add some drops at the end of ...
23-9-2020 at 08:34
by: Heavy Walter
bromine vapour
Low pressure of bromine in order to experiment with eximer lamps.
22-9-2020 at 12:54
by: Heavy Walter
any recommendations for a gas chromatograph machine?
Hi
The world of fragrances is really complex, you will need a GC-MS...
My suggestion is to go for ...
14-9-2020 at 03:43
by: Heavy Walter
HHO Flame Generator for Glaswork
Hi,
My limited experience is that with propane-oxygen torch you can work quartz tubes up to 20 mm d ...
9-8-2020 at 07:28
by: Heavy Walter
3D printed keck clips
Thanks a lot!
18-7-2020 at 09:07
by: Heavy Walter
3D printed keck clips
Hi
someone can help me finding programs to make several sizes of keck clips by 3D printing?
18-7-2020 at 08:17
by: Heavy Walter
Vacuum glass implosion?
Years ago, I evacuated a large dessicant, not knowing that the cover has to match exactly to the lid ...
4-6-2020 at 07:50
by: Heavy Walter
Analytical Chemistry - Instrumental methods
https://www.newcastle.edu.au/course/CHEM3110
25-4-2020 at 06:39
by: Heavy Walter
Cuting cerium metal
Hi
In Mohs´s scale is 2.5 so it is not too hard.
Depening on the shape you can use a cutting plie ...
3-4-2020 at 11:12
by: Heavy Walter
Acetylene Trimerization to Benzene (again)
Hi Dr Scabs,
My purpose was to explore the trimerization in order to produce commercially deuterate ...
19-4-2019 at 15:08
by: Heavy Walter
benzene synthesis
Hi
I did the synthesis years ago. Completely quantitative.
See the setup involved.
I used vanadi ...
17-4-2019 at 09:01
by: Heavy Walter
Methane synthesis
Jackson
Another option to get methane is the reaction of aluminum carbide with water.
27-2-2019 at 04:49
by: Heavy Walter
Methane synthesis
Hi,
In the chromatographic world it is employed in "methanizers", used to quantify CO and CO2 with ...
13-2-2019 at 12:21
by: Heavy Walter
Methane synthesis
Are you familiar with the Sabatier reaction?
You need to feed hydrogen and carbon dioxide through a ...
13-2-2019 at 05:45
by: Heavy Walter
Hydrogen
There are the PEM cells:
https://www.youtube.com/watch?v=oRpSfsE1zUg

And also the HydroStik

h ...
23-11-2018 at 03:47
by: Heavy Walter
Building a high-temperature induction furnace
Hi elementcollector

You will need to protect your crucible in an inert atmosphere, like Argon.
W ...
29-8-2018 at 13:05
by: Heavy Walter
w & p
Working & playing!
11-8-2018 at 12:11
by: Heavy Walter
3396
Hi
Ink cartridge holes may been clogged, Try to clean it.
Ink cartridge contacts can be dirty, cle ...
30-7-2018 at 11:16
by: Heavy Walter
Positive vs negative high voltage device?
Google "Lichtenberg figures and polarity".
7-6-2018 at 09:32
by: Heavy Walter
sabatier reaction (CO2 + 4H2---> CH4 + 2 H2O) Who makes the equipment?
No Portuguese version but WiKi has an entry for methanizer.
Being decided to go ahead with a DIY me ...
16-5-2018 at 12:55
by: Heavy Walter
sabatier reaction (CO2 + 4H2---> CH4 + 2 H2O) Who makes the equipment?
Pay attention to your statement of the reaction at title, is wrong.
CO2 + 4H2---> CH4 + 2 H2O
...
16-5-2018 at 06:27
by: Heavy Walter
sabatier reaction (CO2 + 4H2---> CH4 + 2 H2O) Who makes the equipment?
That reaction is used in GC methanizers. Many companies sell it to install in a GC (Agilent; Perkin ...
15-5-2018 at 13:35
by: Heavy Walter
Making borosilice fritted glass for distillation
Hi Semi

You are right, I told it wrongly.
You have to use what rests into the 40 sieve.
24-4-2018 at 10:50
by: Heavy Walter
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